Question

A book is resting motionless on a table. Even though the book is not moving, there are forces acting on it. Which of the following correctly describes how these forces would change if someone were to slide the book to the opposite side of the table?

Answer 1

Well, gravity is one of the forces, so if u try to put the book on the opposite side of the table (underneath) it would fall

Answer 2

Answer:

The forces acting on the book are balanced by each other.

Explanation:

But what exactly is meant by the phrase unbalanced force?

What is an unbalanced force?

In pursuit of an answer, we will first consider a physics book at rest on a tabletop. There are two forces acting upon the book. One force - the Earth's gravitational pull - exerts a downward force. The other force - the push of the table on the book (sometimes referred to as a normal force) - pushes upward on the book.

Since these two forces are of equal magnitude and in opposite directions, they balance each other. The book is said to be at equilibrium.